Homework Help: Calculating mass from angles and all sides of vector triangle

1. Nov 10, 2009

spcmessina

1. The problem statement, all variables and given/known data
the attachment is a drawing of what was given/what i have already found the mass and weight are the only things i have to find and i cant find any equations that will help me figure this out

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• Lab 7.jpg
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2. Nov 10, 2009

stewartcs

It appears that you have 4 strings supporting an object with some mass. It also appears you have found 4 of the 4 tensions in the 4 strings (i.e. each string has a tension). Thus the tension in the fourth string equals the weight of the suspended object. In order to find the mass of the suspended object (assuming those 4 tensions on your diagram represent the tension in the strings) use Newton's Second Law: F = ma.

EDIT: Please clarify your drawing if I've wrongly assumed the values given are the tensions in each of the 4 strings (it's hard to tell from your drawing).

CS